Marcelo Mayer reached a major milestone in his playing career at Yankee Stadium on Friday night. Read more on Boston.com.

NEW YORK — Red Sox rookie Marcelo Mayer made a trade with a Yankees fan after Friday’s game. The 22-year-old rookie blasted his first big league home run 410 feet in the right-center field stands here at Yankee Stadium. The young fan, who caught it, gave Mayer the ball in exchange for an autographed bat and another ball.

In his first taste of the Yankees-Red Sox rivalry, Marcelo Mayer put his team on the board with his first career home run.